Shimano XTR R180P/S Disc Brake Adaptor 180mm Rotor 74mm Caliper 51mm Frame

Shimano XTR R180P/S Disc Brake Adaptor for 180mm Rotor 74mm Caliper 51mm Frame. Shimano Disc Brake Adaptors allow the use of different sized rotors to your frame or fork. TECH SPECSBrake Caliper Type Post MountMount | Rotor Size Rear IS | 180 Rotor